"We have to be as strong as we can," the Sunderland Echo quotes Brown as saying. "If you don't concede any, then you won't lose and that's always a good starting point.
"It's not just the defence, it's the whole team. We have tried to work on a few things and, to be fair, we could have nicked it. We have had the best chances."
Sunderland are 19th in the Premier League table after 13 games.